Global Patent Index - EP 2106537 A1

EP 2106537 A1 2009-10-07 - A SPECTROMETER AND A METHOD FOR CONTROLLING THE SPECTROMETER

Title (en)

A SPECTROMETER AND A METHOD FOR CONTROLLING THE SPECTROMETER

Title (de)

SPEKTROMETER UND VERFAHREN ZUR STEUERUNG DES SPEKTROMETERS

Title (fr)

SPECTROMÈTRE ET PROCÉDÉ POUR COMMANDER LE SPECTROMÈTRE

Publication

EP 2106537 A1 (EN)

Application

EP 08701723 A

Priority

  • FI 2008050023 W
  • GB 0701536 A

Abstract (en)

[origin: GB2445956A] A spectrometer for material analysis and a control method for a spectrometer. The spectrometer includes a radiant source 140 formed by multiple single radiation sources 141 having different central wavelengths, for generating a measuring signal. A measurement object 100 contains a material to be analyzed. At least one electrically tunable Fabry-Perot filter 120 is included for band pass filtering the measuring signal by at least two pass bands, and a detector 300 (and reference detector 304) detects the filtered measuring signals received from the measurement object 100. The spectrometer has means 312 for modulating each of the single radiation sources 141 and correspondingly means 306, 307 for demodulating the detected signals such that the signal from each single radiation source can be distinguished from each other in the detector 300 and the spectrometer has means for detecting and demodulating multiple pass bands simultaneously. The modulation may be performed by frequency, time division or phase modulation. A second Fabry-Perot interferometer (220, Fig.4) may be used in the vicinity of the detector 300. The signal may be formed by multiple single LED radiation sources.

IPC 8 full level (invention and additional information)

G01J 3/26 (2006.01); G01J 3/10 (2006.01); G01N 21/17 (2006.01); G01N 21/64 (2006.01)

CPC (invention and additional information)

G01J 3/10 (2013.01); G01J 3/26 (2013.01); G01J 3/433 (2013.01); G02B 26/001 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

EPO simple patent family

GB 0701536 D0 20070307; GB 2445956 A 20080730; GB 2445956 B 20091202; EP 2106537 A1 20091007; EP 2106537 A4 20131204; US 2010097613 A1 20100422; US 8233147 B2 20120731; WO 2008090261 A1 20080731

INPADOC legal status


2017-02-15 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20170116

2013-12-04 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20131104

2013-12-04 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G01N 21/64 20060101ALI20131028BHEP

2013-12-04 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G01J 3/26 20060101AFI20131028BHEP

2013-12-04 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G01J 3/10 20060101ALI20131028BHEP

2013-12-04 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G01N 21/17 20060101ALI20131028BHEP

2010-05-05 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2009-10-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20090709

2009-10-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR